Blue pages
Blue pages are a telephone directory listing of American and Canadian state agencies, government agencies, federal government and other official entities, along with specific offices, departments, or bureaus located therein. == Canada == Canadian yellow-page listings indicated "Government Of Canada-See Government Listings In The Blue Pages"; in markets where the local telephone directory was a single volume, the blue pages and community information normally appeared after the alphabetical white-page listings but before the yellow pages advertising.